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Radar: Fire Emblem

Since Fire Emblem has been around for more than 20 years, the script writers have managed to slip sexual innuendos in the dialogue more than once. The absolute winner is Fire Emblem Awakening, which has more innuendo than all the other games combined:

Pre-Awakening series (Akaneia, Jugdral, Elibe, Magvel, and Tellius games:

Fire Emblem Awakening-exclusive examples: